schala/schala-repl/src/repl/response.rs

use colored::*;
use std::fmt;
use std::fmt::Write;

use super::ReplOptions;
use crate::language::{ComputationResponse, DebugAsk};

pub struct ReplResponse {
    label: Option<String>,
    text: String,
    color: Option<Color>,
}

impl fmt::Display for ReplResponse {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        let mut buf = String::new();
        if let Some(ref label) = self.label {
            write!(buf, "({})", label).unwrap();
        }
        write!(buf, "=> {}", self.text).unwrap();
        write!(
            f,
            "{}",
            match self.color {
                Some(c) => buf.color(c),
                None => buf.normal(),
            }
        )
    }
}

pub fn handle_computation_response(
    response: ComputationResponse,
    options: &ReplOptions,
) -> Vec<ReplResponse> {
    let mut responses = vec![];

    if options.show_total_time {
        responses.push(ReplResponse {
            label: Some("Total time".to_string()),
            text: format!("{:?}", response.global_output_stats.total_duration),
            color: None,
        });
    }

    if options.show_stage_times {
        responses.push(ReplResponse {
            label: Some("Stage times".to_string()),
            text: format!("{:?}", response.global_output_stats.stage_durations),
            color: None,
        });
    }

    for debug_resp in response.debug_responses {
        let stage_name = match debug_resp.ask {
            DebugAsk::ByStage { stage_name, .. } => stage_name,
            _ => continue,
        };
        responses.push(ReplResponse {
            label: Some(stage_name.to_string()),
            text: debug_resp.value,
            color: Some(Color::Red),
        });
    }

    responses.push(match response.main_output {
        Ok(s) => ReplResponse {
            label: None,
            text: s,
            color: None,
        },
        Err(e) => ReplResponse {
            label: Some("Error".to_string()),
            text: e,
            color: Some(Color::Red),
        },
    });

    responses
}